88 lines
2.3 KiB
Plaintext
88 lines
2.3 KiB
Plaintext
# 2013 March 20
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# This file tests the effect of the mmap() or mremap() system calls
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# returning an error on the library.
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#
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# If either mmap() or mremap() fails, SQLite should log an error
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# message, then continue accessing the database using read() and
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# write() exclusively.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix mmap2
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if {$::tcl_platform(platform)!="unix" || [test_syscall defaultvfs] != "unix"} {
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finish_test
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return
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}
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ifcapable !mmap {
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finish_test
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return
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}
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db close
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sqlite3_shutdown
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test_sqlite3_log xLog
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proc xLog {error_code msg} {
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if {[string match os_unix.c* $msg]} {
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lappend ::log $msg
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}
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}
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foreach syscall {mmap mremap} {
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test_syscall uninstall
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if {[catch {test_syscall install $syscall}]} continue
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for {set i 1} {$i < 20} {incr i} {
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reset_db
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execsql { PRAGMA mmap_size = 8000000 }
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test_syscall fault $i 1
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test_syscall errno $syscall ENOMEM
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set ::log ""
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do_execsql_test 1.$syscall.$i.1 {
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CREATE TABLE t1(a, b, UNIQUE(a, b));
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INSERT INTO t1 VALUES(randomblob(1000), randomblob(1000));
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INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
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INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
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INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
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INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
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INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
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INSERT INTO t1 SELECT randomblob(1000), randomblob(1000) FROM t1;
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}
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set nFail [test_syscall fault 0 0]
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do_execsql_test 1.$syscall.$i.2 {
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SELECT count(*) FROM t1;
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PRAGMA integrity_check;
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} {64 ok}
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do_test 1.$syscall.$i.3 {
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expr {$nFail==0 || $nFail==1}
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} {1}
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do_test 1.$syscall.$i.4.nFail=$nFail {
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regexp ".*${syscall}.*" $::log
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} [expr $nFail>0]
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}
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}
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db close
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test_syscall uninstall
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sqlite3_shutdown
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test_sqlite3_log
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sqlite3_initialize
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finish_test
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